Calculate Your BMI
Enter your height and weight to get your BMI result
What does this mean?
--
BMI Categories:
- Underweight: BMI less than 18.5
- Normal weight: BMI 18.5–24.9
- Overweight: BMI 25–29.9
- Obesity: BMI 30 or greater
About BMI Calculator 📊
Understanding your Body Mass Index is the first step towards better health
What is BMI?
Body Mass Index (BMI) is a value derived from the mass (weight) and height of a person. The BMI is defined as the body mass divided by the square of the body height, and is expressed in units of kg/m².
BMI is a simple, inexpensive, and noninvasive method for screening weight categories that may lead to health problems.
Why Check Your BMI?
Knowing your BMI helps you understand if you're in a healthy weight range for your height. It's a useful screening tool for identifying potential weight problems in adults.
However, it's important to note that BMI doesn't directly measure body fat or health, and should be used as part of a broader health assessment.
BMI Limitations
While BMI is widely used, it has limitations. It doesn't account for muscle mass, bone density, overall body composition, and racial and sex differences.
Athletes and muscular individuals may have a high BMI but low body fat. Always consult healthcare professionals for comprehensive health assessments.
Benefits of Using Our BMI Calculator 💡
Discover why millions trust our BMI calculator for their health tracking
Instant Results
Get your BMI calculation in seconds with our fast and accurate algorithm.
Mobile Friendly
Access our calculator on any device, anytime, anywhere. Perfect for on-the-go tracking.
100% Private
Your data stays on your device. We don't store or share your personal information.
Detailed Insights
Get comprehensive explanations of your results and what they mean for your health.
How to Use the BMI Calculator 📝
Simple steps to calculate your Body Mass Index
Enter Your Height
Input your height in centimeters in the first field. Make sure to measure accurately without shoes for best results.
Enter Your Weight
Input your current weight in kilograms. For accuracy, weigh yourself in the morning before eating or drinking.
Add Optional Details
You can optionally enter your age and gender for more personalized insights, though these aren't required for BMI calculation.
Click Calculate
Hit the "Calculate BMI" button to get your instant results. Your BMI value and category will appear immediately.
Review Your Results
Read through your results and the explanation provided. Understand what your BMI means for your health.
Frequently Asked Questions ❓
Find answers to common questions about BMI and our calculator
A healthy BMI range is typically between 18.5 and 24.9. However, it's important to remember that BMI is just one indicator of health and doesn't account for factors like muscle mass, bone density, and overall body composition.
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, so athletes or muscular individuals may have a high BMI but low body fat. For a complete health assessment, consider other measures like waist circumference, body fat percentage, and overall fitness level.
BMI is not recommended during pregnancy as weight gain is expected and necessary for a healthy pregnancy. Pregnant women should follow their healthcare provider's guidance on weight gain and nutrition.
For most adults, checking BMI every 6-12 months is sufficient unless you're actively trying to lose or gain weight, in which case monthly checks might be more appropriate. Remember that BMI is just one tool in your health toolkit.
If your BMI is outside the healthy range, consider consulting with a healthcare professional for personalized advice. They can help you develop a plan that includes healthy eating, regular physical activity, and other lifestyle changes tailored to your individual needs.